I discovered CarJitsu this past April at the Minneapolis-St. Paul International Airport, where a bout was broadcast on a wall-mounted television above a display of Doritos. There is, truthfully, not much to explain about this newfangled sport. CarJitsu is an athletic contest, really a wrestling match, between two people who grapple inside a small car until one of them submits to some sort of chokehold or pin. There are two three-minute rounds but possibly a third if the match is tied after the second round. The combatants start buckled next to each in the passenger and driver seats (selection determined by a coin toss), then unbuckle themselves and attack.